Search a number
-
+
31400210342 = 2823161911783
BaseRepresentation
bin11101001111100110…
…010010111110100110
310000001100000221212102
4131033212102332212
51003301423212332
622231451252102
72161061245514
oct351746227646
9100040027772
1031400210342
1112353666866
126103a4a032
132c654b8527
14173c3b34b4
15c3ba11062
hex74f992fa6

31400210342 has 16 divisors (see below), whose sum is σ = 47190677760. Its totient is φ = 15670012872.

The previous prime is 31400210311. The next prime is 31400210357. The reversal of 31400210342 is 24301200413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2658983 + ... + 2670765.

It is an arithmetic number, because the mean of its divisors is an integer number (2949417360).

Almost surely, 231400210342 is an apocalyptic number.

31400210342 is a deficient number, since it is larger than the sum of its proper divisors (15790467418).

31400210342 is a wasteful number, since it uses less digits than its factorization.

31400210342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14227.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31400210342 its reverse (24301200413), we get a palindrome (55701410755).

The spelling of 31400210342 in words is "thirty-one billion, four hundred million, two hundred ten thousand, three hundred forty-two".

Divisors: 1 2 823 1619 1646 3238 11783 23566 1332437 2664874 9697409 19076677 19394818 38153354 15700105171 31400210342